“MR conditional” respiratory ventilator system incident in a 3-T MRI environment

Greenberg, Kathryn L.; Weinreb, Jeffrey C.; Shellock, Frank G.

doi:10.1016/j.mri.2011.07.002

Cited by 4 publications

(4 citation statements)

References 5 publications

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“…There have been reports of office furniture, hospital beds, oxygen tanks, and medical equipment 77 being pulled into the magnet. Deaths due to objects flying into the magnet, although rare, have also been reported.…”

Section: Mri Transportmentioning

confidence: 99%

Inter- and Intra-hospital Transport of the Critically IllDiscussion

Blakeman

Branson

2013

Respir Care

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Intra-and inter-hospital transport is common due to the need for advanced diagnostics and procedures, and to provide access to specialized care. Risks are inherent during transport, so the anticipated benefits of transport must be weighed against the possible negative outcome during the transport. Adverse events are common in both in and out of hospital transports, the most common being equipment malfunctions. During inter-hospital transport, increased transfer time is associated with worse patient outcomes. The use of specialized teams with the transport of children has been shown to decrease adverse events. Intra-hospital transports often involve critically ill patients, which increases the likelihood of adverse events. Radiographic diagnostics are the most common in-hospital transport destination and the results often change the course of care. It is recommended that portable ventilators be used for transport, because studies show that use of a manual resuscitator alters blood gas values due to inconsistent ventilation. The performance of new generation transport ventilators has improved greatly and now allows for seamless transition from ICU ventilators. Diligent planning for and monitoring during transport may decrease adverse events and reduce risk.

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Section: Mri Transportmentioning

confidence: 99%

Inter- and Intra-hospital Transport of the Critically IllDiscussion

Blakeman

Branson

2013

Respir Care

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“…Ventilators must also be modified due to the presence of mechanical switches or ferromagnetic components. Some ventilators only operate at a ‘safe’ distance from the MRI machine due to their ferromagnetic components [23]. These devices are MRI-conditional.…”

Section: Challenges Of Monitoring Patients In the Mr Environmentmentioning

confidence: 99%

Cardiovascular implantable electronic devices: a review of the dangers and difficulties in MR scanning and attempts to improve safety

et al. 2017

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An increasing number of patients are being treated with cardiovascular implantable electronic devices (CIEDs), many of which are MR conditional. There is a lack of literature on the safe scanning of MR conditional CIEDs. This review article discusses MR imaging safety in patients with implanted CIEDs. Guidelines on safe use and indications of imaging patients with MR conditional CIEDs are described, followed by a pictorial essay of the radiographic features of these devices. We also discuss the challenges of monitoring the patient in the MR environment, advances in MRI conditional imaging of devices, availability, limitations and workflow including vendor-specific and other collaborative efforts to simplify the scanning process. Radiologists must be able to facilitate the safe utilization of MR imaging in patients who have CIEDs. A thorough knowledge of the hazards of imaging non-MR compatible devices is required as well as knowing how to correctly identify and manage the imaging of patients with MR conditional CIEDs. Finally, we propose steps required to facilitate the safe scanning of patients with MR conditional CIEDs adopted in our institution and a contingency plan in the event that an inadvertent MR scan of a patient with a MRI unsafe CIED should occur.Main Messages• Risks of MR imaging in patients who have CIEDs have been worked around. • There are many technical limitations in enabling safe MR scanning of CIEDs. • Radiological identification of MRI-conditional status of CIEDs is useful. • Standardizing conditions for safe MRI scanning is important. • We offer example algorithms for facilitating safe MRI scanning of CIEDs.

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“…For example, when an MR-conditional ventilator (SERVO-I, Maquet) was placed beyond the 200 Gauss line without brakes applied, it turned into a projectile object attaching itself to the 3 T magnet. 24 Given the risk of such incidents, clear SOPs, line marking on the floor, and/or straps to hold devices in appropriate positions should be used. Ventilators that are not known to be MR safe may malfunction in MR environments -such malfunction may not cause device shutdown, but result in more subtle problems, such as the delivery of inadequate inspiratory pressures.…”

Section: Anesthetized Patientsmentioning

confidence: 99%